About Gemma
.NET Backend Developer | Modernization of systems and scalable APIs
- Modernization of legacy systems
- Scalable software architecture and design
- API and microservices optimization
- Consulting and technical mentoring
- .NET 7, C#, DDD, REST APIs, Azure, Docker, RabbitMQ, Redis
- Available for remote projects of 20–40 h/week. First projects welcome, even short-term ones
Spanish
Native or bilingual
English
Conversational
Experience
- TechsBCN.NET DeveloperJune 2025 - January 2026 (7 months)Development and maintenance of .NET 8 microservices under DDD architecture, focusing on scalability, resilience, and software quality. Implementation of Sagas and Mediator pattern for managing distributed flows between services. Persistence with Entity Framework Core and query optimization. Development of unit and integration tests using Mocks and NSubstitute. Configuration of asynchronous messaging with RabbitMQ in Docker and Kubernetes environments. Management of pipelines and releases in Azure DevOps to ensure reliable deployments. Creation and execution of Test Plans and quality control, validating tickets and deliverables. Maintenance of NuGet packages and internal DLLs, ensuring consistency and updating dependencies.
- DiR Sistemes d'Informació.NET and REACT DeveloperFebruary 2024 - June 2025 (1 year and 4 months)Development of APIs and web applications following DDD principles and microservices architecture. Development of REST APIs for user registration, schedule visualization, and appointment application in C# .NET 8. Persistence with Dapper and EF Core, including proxies for efficient remote calls. Configuration of AutoMapper and FluentValidation for data transformation and robust validation. Frontend development with React 19, Next.js 15, and Tailwind CSS, with forms managed using React Hook Form. Focus on good development practices, modularity.
- K-LaganAnalyst ProgrammerNovember 2021 - January 2024 (2 years and 2 months)Development of web and production management applications with PHP and React, integrating business logic and data analysis.• - Application for recording manufacturing times and production planning, with history for analysis and statistics. Human resources planning and task assignment according to schedules and capabilities.• - Supervision of development of reception control systems.• - Active participation in functional analysis and monitoring of developments to ensure quality. Development with React, Node.js and Typescript, applying SOLID principles and SCRUM methodology.
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Education
- Computer EngineeringUnir2026Ingeniería informática
- Higher Level Vocational Training in Cross-Platform Application DevelopmentIFP2018FP2 Desarrollo de aplicaciones multiplataforma